Gasket retainer



Jan. 27, 1931. c c, FARMER 1,790,207

GASKET RETAINER Fi led June 17, r1927 INVENTOR CLYDE c FARMER ATTORNEY Patented Jan. 27, 1931 d s UNITED. STATES Ar OFFICE;

CLYDE o. FARMER, E PITTSBURGH, PENNS LVA IA; ASSIGNOR To THE WESTING- HOUSE AIR BRAKE COMPANY, or WILMERDING, PENNSYLVANIA,- A CORIPOBATION- OF PENNSYLVANIA GASKET RETAINER Application filed June '17, 1927. Serial o. 199,565.

Thisinvention relates. to hose couplings, and, more device.

The principal object of inventionis J fSfto provide an improved means forholding' the gasket of a hose couplingin place.

'In the accompanying drawing; Fig. 1 is asectional view of a hose coupling, with my improvement appliedthereto; Fig. 2 a sec- 10, tion on the line 2-2 of F i 1; Fig. 8 a section on the line 33 of Fig. 1; and Fig. tj

a section on the line kt of Fig. 1."

V The coupling head 1,as shown in the'draw ing, is provided with the usual locking flanges 2 and 3 and the opening of the conduit 4 at the meeting face of the head isprovided with the usual annular recess 5 forreceiving the flange of the usual flexible gasketf ti.

' 'In order to hold the gasket 6"against a 2o ga-sketof a counterpart coupling with uni- 7 form pressure and to assist inpreventing leakage around the gasket, a pressure exerting member 7 is provided, which has a ring' portion 8 having a concaveface adapted to engage the inner rounded ket.

Spaced from the portions isaring 9which" slidingly engages a stem 10. Said' stem is provided at its outer end with a threaded extension which passes through a bore in the end wall of a hollow cylindrical extension 11 of the head 1 and is engaged by a nut 12 for clamping the stemin place.

Disposed in the chamber within the enten- '35 sion 11 is a coil spring 13 which engagesthe ring 9 at one end and the inner face of the 'end wall of the extension 11 at the other end.

The stemlO is provided with opposite 1011-- I gitudinal grooves- 14 and engaging in saidgrooves are pins'15 which are secured to the 'With the parts positioned as shown in the drawing, the member 7 is pressed into engagement with the gasket 6 by the pressure of the 0 spring 13 and thus assures uniform compres-- particularly to" a gasket holding,

corner of the gas-- part coupling heads are coupled together, and also assists in maintaining the gasket inleak tight engagement with the outer wall of the recess in the coupling head.

If it is desired to remove a gasket andput in a new one, the member 7 is pushed inward- 1y against the pres-sure of the-spring 13"until V sion of two engaging gaskets when counters I the pins 15 are in alinement wit-h the recesses 18." T'he member-7 is thenpartially Irotated so that the pins 15 engagein 'therecesses' 18 and thenwhen released, the member will be prevented from moving towarcl.-the gasket holding position, as will be evident. While the member 7 is soheld,'an old-gasket' may be removed-and a newone put in, and then the'member 7 is rotated so that'the pins 15 again a-line with the grooves 14;, so that upon release of the member, the spring 1 3 will be free to press Ithe member intoengagement with the gasket.

[Having now described my invention, what desire to secureby Letters I claim as new and Patent, is i 1. The combinatiohwith a hose coupling head 'havinga gasket disposed in a recess at the meeting face of the head, of a member .7 7 I engaging said gasket, a stem carried bysaid head on which said member 1s shdably mount: ed, a spring urging sa1d member against sa1d gasket, a pin carried by said member and normally engaging a longitudinal groove in said stem, said stem having an annular groove for receiving said pin upon a partial rotat1on of sa1d member when said member is moved toa pos1t1on away from sa1d gasket.

2; The combination with a hose coupling head having a gasket in a recess at the meeting face of the head, of a member engaging said gasket, a spring pressing said member against said gasket,a stem carried by said head on which'said member is slidably mounted and provided with [a shoulder, and a projection carried by said member, for engaging said shoulder, upon .a rotatlve movement ofsaid member, after said member has been moved away from said gasket.

In testimony whereof I havehereunto set my hand. r V g CLYDE C. FARMER. 

